Debris Flow in Lassen County, California

Debris Flow October 24, 2021 – October 25, 2021 · Lassen County, California

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Law enforcement reported several areas with debris in the roadway, and the culvert under the railway is plugged.

The wider storm

A strong atmospheric river event produced a major heavy rain, high wind, and high elevation snow event for much of the region. Record-setting rainfall amounts for many areas of the Sierra into western Nevada. NWS Reno received multiple reports of mud and rock slides in the Sierra along I-80 near the summit, and CA 70 and CA 89 in Sierra, Plumas, and Lassen Counties.

Began near (sve)susanville Muni (40.3655, -120.5700).

Source: NOAA Storm Events Database, event 987314. Narratives are written by the National Weather Service forecast office that issued the report.

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